Hosting on a vape
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The chip is marked PUYA C642F15, which wasn’t very helpful. I was pretty sure it was a PY32F002A, but after poking around with pyOCD, I noticed that the flash was 24k and we have 3k of RAM. The extra flash meant that it was more likely a PY32F002B, which is actually a very different chip.1
So here are the specs of a microcontroller so bad, it’s basically disposable:
24MHz Coretex M0+ 24KiB of Flash Storage 3KiB of Static RAM a few peripherals, none of which we will use.
You may look at those specs and think that it’s not much to work with. I don’t blame you, a 10y old phone can barely load google, and this is about 100x slower. I on the other hand see a blazingly fast web server.